Acharya Nagarjuna University (ANU) 2006 B.Sc Zoology I - BIOLOGY OF INVERTEBRATES AND CELL BIOLOGY - - Question Paper

B.Sc. Zoology, 1st Year DEGREE EXAMINATION, DECEMBER 2006
Paper I - BIOLOGY OF INVERTEBRATES AND CELL BIOLOGY

Time : 3 hours Maximum : 100 marks

part A
(PROTOZOA - HELMINTHES)

1. (a) provide a detailed account on coral reef formation. (18)

Or
(b) define in detail the reproduction and development in Obelia.

2. Write short notes on any 2 of the following: (8 + eight = 16)
(a) Sporozoa (b) Polystomella
(c) Canal system (d) Cercaria.

part B
(ANNELIDA - HEMICHORDATA)

3. (a) define the pearl formation in mollusca. (18)

Or

(b) provide a detailed account of coelom and coelomoducts in Annelida.

4. Write short notes on any 2 of the following: (8 + eight = 16)
(a) Trochophore (b) Mantle in mollusca
(c) Glochidium (e) Torsion in gastropoda.

part C
(CELL BIOLOGY)

5. (a) define the different techniques for the study of animal cells. (16)

Or
(b) provide a detailed account of plasma membrane.

6. Write short notes on any 2 of the following: (8 + eight = 16)
(a) Mitochondria (b) Cell adhesion
(c) Salivary gland chromosomes (d) Lysosomes.

Earning:   Approval pending.